/help

[topaz dune]

The last post closed for some reason, I don't know why...

Hello I'm trying to sort a LinkedHashMap with CollectionSort(), but it gets this error:

[plucky kestrel]

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Hey @topaz dune! Please use /close or the Close Post button above when your problem is solved. Please remember to follow the help guidelines. This post will be automatically closed after 300 minutes of inactivity.

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[mossy forum]

You can't sort a LinkedHashStuff. It maintains a well-defined order, sure, but it doesn't offer to reorder.

[topaz dune]

Okie, thank you!
I'll try to do this in a different way

[plucky kestrel]

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[mossy forum]

You could create another one, created in the order you want it

[alpine panther]

The code I sent works for an ArrayList containing Map.Entry objects.

[topaz dune]

Hellllo!!

Something like this?:
ArrayList<HashMap> list = new ArrayList<>();

I'm sorry, I'm a beginer in this world

[alpine panther]

The signature of the map would be.
ArrayList<Map.Entry<Double Integer>>
However, I would use a TreeMap instead since that implementation of a Map is sorted by a comparator. You would have to switch your keys with your values however.
TreeMap<Integer,Double>
where the key is the power and the value is the coefficient.

You would create such a map like this:
TreeMap<Integer,Double> polynom = new TreeMap<>(Comparator.reverseOrder());

[topaz dune]

Thank you very much!
The last 1 hours I tried to create the same this in a different approach.
The other approach works for me, so I'll finish with it and then I'll move on to your approach in order to practice in a different way.

Anyway I need to read a bit about TreeMap so it's a good practice, thank you very very very much 🙏 ❤️

[plucky kestrel]

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